{"id":"vidhyamitra:city-day:jamnagar:2181-09-16:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/jamnagar/2181-09-16","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2181-09-16","date_display":"September 16, 2181 CE","panchanga":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2181,"month":9,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517912.770833,"kali_year":5283,"ahargana":1929447.2708,"sun":{"sidereal_longitude":146.1374,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":234.8981,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":88.7607,"elapsed_within_tithi_degrees":4.7607},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3,"moon_longitude":234.8981,"elapsed_within_degrees":8.2314},"yoga":{"number":2,"name":"Prīti","sum_longitude":21.0355},"karana":{"half_tithi_index":14,"name":"Viṣṭi"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"sky":{"method":"Sūrya-Siddhāntic Bhāskara-II 4-step iteration with atan2-based śīghra + varying peripheries + lunar latitude","engine_version":"3.0 (Pūrṇa — complete SS implementation)","tradition_sources":"Āryabhaṭīya 499 CE → SS Ch.1-5 Burgess 1860 → Siddhānta-Śiromaṇi Bhāskara II 1150 → Tantrasaṅgraha Nīlakaṇṭha 1501","input":{"year":2181,"month":9,"day":16,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2517912.770833,"ahargana":1929447.2708,"kali_year":5283,"ayanamsa_lahiri":26.3913,"grahas":{"sun":{"sidereal_longitude":147.30357400000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":235.23407399999996,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false,"latitude":3.2517},"mars":{"sidereal_longitude":166.194474,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":128.444574,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":129.15047400000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":190.96877399999994,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":93.38347399999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":188.5984,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":8.5984,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false}},"panchang":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2181,"month":9,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517912.770833,"kali_year":5283,"ahargana":1929447.2708,"sun":{"sidereal_longitude":146.1374,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":234.8981,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":88.7607,"elapsed_within_tithi_degrees":4.7607},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3,"moon_longitude":234.8981,"elapsed_within_degrees":8.2314},"yoga":{"number":2,"name":"Prīti","sum_longitude":21.0355},"karana":{"half_tithi_index":14,"name":"Viṣṭi"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.252,"elongation":88.761},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.252,"opposition_distance":91.239}},"eclipse_window_40days":[]},"city":{"slug":"jamnagar","name":"Jamnagar, Gujarat","lat":22.4707,"lon":70.0577,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"jamnagar","name":"Jamnagar, Gujarat","lat":22.4707,"lon":70.0577,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"tier-1"},"sunriseLocal":"06:36","sunsetLocal":"18:52","solarNoonLocal":"12:44","dayLengthHours":12.258504166423322,"dayLengthDisplay":"12 Hours 15 Mins 31 Secs","nightLengthDisplay":"11 Hours 44 Mins 29 Secs","moonriseLocal":"13:14","moonsetLocal":"23:58","rahuKala":{"name":"Rāhu Kāla","start":"17:20","end":"18:52","startHours":17.328620545229935,"endHours":18.86093356603285,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:44","end":"14:16","startHours":12.731681482821188,"endHours":14.263994503624104,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:48","end":"17:20","startHours":15.796307524427018,"endHours":17.328620545229935,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:28","end":"09:52","startHours":9.462747038441636,"endHours":9.87136384398908,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:07","end":"07:26","startHours":7.113200406543832,"endHours":7.440093850981787,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:19","end":"13:08","startHours":12.323064677273743,"endHours":13.140298288368632,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:58","end":"05:47","startHours":4.967962177419752,"endHours":5.785195788514639,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:35","end":"06:36","startHours":5.580887385740917,"endHours":6.602429399609528,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:46","end":"15:36","startHours":14.77476551055841,"endHours":15.591999121653298,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:40","end":"19:04","startHours":18.66093356603285,"endHours":19.060933566032848,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:52","end":"19:22","startHours":18.86093356603285,"endHours":19.371704572967154,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:37","end":"20:22","startHours":18.61093356603285,"endHours":20.36093356603285,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:19","end":"01:08","startHours":24.323064677273745,"endHours":25.14029828836863,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:36","end":"08:08","startHours":6.602429399609528,"endHours":8.134742420412444,"quality":"inauspicious"},{"name":"Chala","start":"08:08","end":"09:40","startHours":8.134742420412444,"endHours":9.667055441215357,"quality":"neutral"},{"name":"Labha","start":"09:40","end":"11:12","startHours":9.667055441215357,"endHours":11.199368462018274,"quality":"auspicious"},{"name":"Amṛta","start":"11:12","end":"12:44","startHours":11.199368462018274,"endHours":12.731681482821188,"quality":"auspicious"},{"name":"Kāla","start":"12:44","end":"14:16","startHours":12.731681482821188,"endHours":14.263994503624104,"quality":"inauspicious"},{"name":"Śubha","start":"14:16","end":"15:48","startHours":14.263994503624104,"endHours":15.796307524427018,"quality":"auspicious"},{"name":"Roga","start":"15:48","end":"17:20","startHours":15.796307524427018,"endHours":17.328620545229935,"quality":"inauspicious"},{"name":"Udveg","start":"17:20","end":"18:52","startHours":17.328620545229935,"endHours":18.86093356603285,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:52","end":"20:20","startHours":18.86093356603285,"endHours":20.32862054522993,"quality":"auspicious"},{"name":"Roga","start":"20:20","end":"21:48","startHours":20.32862054522993,"endHours":21.796307524427018,"quality":"inauspicious"},{"name":"Udveg","start":"21:48","end":"23:16","startHours":21.796307524427018,"endHours":23.263994503624104,"quality":"inauspicious"},{"name":"Chala","start":"23:16","end":"00:44","startHours":23.263994503624104,"endHours":24.731681482821188,"quality":"neutral"},{"name":"Labha","start":"00:44","end":"02:12","startHours":24.731681482821188,"endHours":26.19936846201827,"quality":"auspicious"},{"name":"Amṛta","start":"02:12","end":"03:40","startHours":26.19936846201827,"endHours":27.667055441215357,"quality":"auspicious"},{"name":"Kāla","start":"03:40","end":"05:08","startHours":27.667055441215357,"endHours":29.134742420412444,"quality":"inauspicious"},{"name":"Śubha","start":"05:08","end":"06:36","startHours":29.134742420412444,"endHours":30.602429399609527,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:36","end":"07:36","startHours":6.602429399609528,"endHours":7.602429399609528,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:36","end":"08:36","startHours":7.602429399609528,"endHours":8.602429399609527,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:36","end":"09:36","startHours":8.602429399609527,"endHours":9.602429399609527,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:36","end":"10:36","startHours":9.602429399609527,"endHours":10.602429399609527,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:36","end":"11:36","startHours":10.602429399609527,"endHours":11.602429399609527,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:36","end":"12:36","startHours":11.602429399609527,"endHours":12.602429399609527,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:36","end":"13:36","startHours":12.602429399609527,"endHours":13.602429399609527,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:36","end":"14:36","startHours":13.602429399609527,"endHours":14.602429399609527,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:36","end":"15:36","startHours":14.602429399609527,"endHours":15.602429399609527,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:36","end":"16:36","startHours":15.602429399609527,"endHours":16.602429399609527,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:36","end":"17:36","startHours":16.602429399609527,"endHours":17.602429399609527,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:36","end":"18:36","startHours":17.602429399609527,"endHours":18.602429399609527,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:36","end":"19:36","startHours":18.602429399609527,"endHours":19.602429399609527,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:36","end":"20:36","startHours":19.602429399609527,"endHours":20.602429399609527,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:36","end":"21:36","startHours":20.602429399609527,"endHours":21.602429399609527,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:36","end":"22:36","startHours":21.602429399609527,"endHours":22.602429399609527,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:36","end":"23:36","startHours":22.602429399609527,"endHours":23.602429399609527,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:36","end":"00:36","startHours":23.602429399609527,"endHours":24.602429399609527,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:36","end":"01:36","startHours":24.602429399609527,"endHours":25.602429399609527,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:36","end":"02:36","startHours":25.602429399609527,"endHours":26.602429399609527,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:36","end":"03:36","startHours":26.602429399609527,"endHours":27.602429399609527,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:36","end":"04:36","startHours":27.602429399609527,"endHours":28.602429399609527,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:36","end":"05:36","startHours":28.602429399609527,"endHours":29.602429399609527,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:36","end":"06:36","startHours":29.602429399609527,"endHours":30.602429399609527,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"North-East","rahuVasa":"North-East","anandadiYoga":{"name":"Kāṇa","quality":"Inauspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":2.503491412209536,"eotMinutes":5.868311030728706,"ayanamsa":26.3913}},"calendars":{"vikram_samvat":2238,"vikram_samvatsara":"Jaya","saka_samvat":2103,"saka_samvatsara":"Vṛṣa","bengali_samvat":1588,"malayalam_era":1357,"nanakshahi_year":712,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Aṣṭamī · Vikram 2238 Jaya · Śaka 2103 Vṛṣa"},"festivals":[{"id":"radhashtami","name":"Rādhāṣṭamī","name_sanskrit":"राधाष्टमी","tradition":"Vaishnava","associated_deity":"Śrī Rādhā (Krishna's hlādinī-śakti)","significance":"Manifestation of Śrī Rādhā at Barsānā — Krishna's ādi-śakti.","vrata":true,"detection":{"tithi_number":8,"tithi_paksha":"Śukla","lunar_month":"Bhādrapada"},"precedence":2,"sources":["Padma Purāṇa","Brahma-Vaivarta Purāṇa"]}],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Jyeṣṭhā","url":"/day/-3137-10-20","relevance":0.5},{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Śukla Aṣṭamī","url":"/day/-3137-12-25","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"jamnagar"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga September 16, 2181 CE · Jamnagar, Gujarat · Vidhyamitra","description":"September 16, 2181 CE for Jamnagar, Gujarat: Śukla Aṣṭamī, sūryodaya 06:36, sūryāsta 18:52.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/jamnagar/2181-09-16","hreflang_alternates":{"en":"https://vidhyamitra.com/city/jamnagar/2181-09-16","sa":"https://sa.vidhyamitra.com/city/jamnagar/2181-09-16","hi":"https://hi.vidhyamitra.com/city/jamnagar/2181-09-16","x-default":"https://vidhyamitra.com/city/jamnagar/2181-09-16"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T16:20:43.197Z","verification":{"type":"multi-marker","confidence":"canonical"}},{"pillar":"Vidhyamitra-Tier2","pillar_version":"0.1.0","method":"Spherical astronomy + Lahiri ayanamsa + standard solar declination + EoT correction","retrieved_at":"2026-06-01T16:20:43.197Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T16:20:43.197Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}